Storylines: You know the QBs, but who is DuJuan Harris?

Did you know Packers quarterback Aaron Rodgers grew up in Northern California and idolized Joe Montana? And have you heard 49ers quarterback Colin Kaepernick was born in Wisconsin and idolized Brett Favre?

Now you have.

And you’ll hear it a few more times before the 49ers host the Packers in a NFC divisional playoff game Saturday night at Candlestick Park.

The contest will be their first postseason meeting in San Francisco since Steve Young and Terrell Owens teamed up for a last-second touchdown in a 30-27 wild-card win on Jan. 3, 1999.

But the history between the teams – and the background of the quarterbacks – won’t be relevant once the game begins.

Here are some other storylines to monitor during Saturday’s game:

THE PACK CAN PASS BUT ….

HARRIS

DuJuan Harris. (AP)

Quick: Who was Green Bay’s leading rusher?

If you guessed Alex Green, well, you clearly are wearing a cheesehead.

Green Bay’s 20th-ranked rushing attack has used a backfield by committee featuring Green, Ryan Grant, James Starks and DuJuan Harris, who had a team-high 47 yards in a wild-card win over the Vikings. Harris, who was promoted from the practice squad on Dec. 1, spent a week working as a car salesman in Jacksonville earlier this season.

Green Bay’s ordinary ground game is particularly relevant given this stat: The 49ers were 10-1 when they surrendered fewer than 100 rushing yards.

San Francisco beat a trio of Hall-of-Fame quarterbacks – Rodgers, New England’s Tom Brady and New Orleans’ Drew Brees – but went 1-3-1 against teams that managed more than 95 rushing yards.

San Francisco made Green Bay’s offense one-dimensional in a Week 1 win: The Packers had 303 of their 348 yards through the air.

ABSENCE OF ALL-PROS?

WILLIS

Patrick Willis. (AP)

If defensive tackle Justin Smith is limited or can’t finish the game because of his partially torn triceps, the 49ers likely won’t have both of their All-Pro defensive captains on the field on certain plays.

The difference? They would be without linebacker Patrick Willis by choice.

In the season opener at Green Bay, San Francisco often took Willis out and replaced him with cornerback Perrish Cox when the Packers went to four wide receivers. Willis played a season-low 67 percent of the defensive snaps (48 of 72). Fellow All-Pro linebacker NaVorro Bowman also came out in the 49ers’ dime package and missed 13 defensive snaps.

The personnel package worked in Week 1. But the Packers probably won’t be too upset to see Willis or Bowman on the sideline Saturday.

CROSBY

Mason Crosby. (AP)

WIDE RIGHT

If the game comes down to a potential game-winning kick … there could a goat.

San Francisco’s David Akers ranked 30th in the NFL in field-goal percentage (69.0) and Green Bay’s Mason Crosby was 31st (63.6). The pair combined to miss 25 field goals, making just 20 of 40 from at least 40 yards.

A striking difference, of course, is that Akers isn’t guaranteed to play Saturday. The struggling six-time Pro Bowler will continue his practice competition with newly signed Billy Cundiff for the right to kick in the postseason.

READY FOR READ OPTION?

In Week 1, Kaepernick appeared for one play and ran 17 yards up the middle to set up Akers’ 63-yard field goal.

The Packers, who haven’t faced a team that’s run the read option this season, could see more of Kaepernick on the move Saturday. The Packers faced Seattle in Week 3, but the Seahawks didn’t unveil the read option with quarterback Russell Wilson until later in the season.

Green Bay did face an elusive quarterback Saturday in Minnesota’s Joe Webb, who had 68 yards on seven carries. Kaepernick, of course, will present more challenges than the scattered-armed Webb. The Vikings backup completed 7 of his first 25 passes.